| 1 |
Am Dienstag, 18. Dezember 2012, 12:43:55 schrieb Marcin Mirosław: |
| 2 |
> W dniu 18.12.2012 12:13, Sven Eden pisze: |
| 3 |
|
| 4 |
(snip, because this has nothing to do with the previous discussion.) |
| 5 |
|
| 6 |
> >> On my 32-bit machines I have... |
| 7 |
> >> |
| 8 |
> >> FLAGS="-O2 -march=native -mfpmath=sse -fomit-frame-pointer -pipe |
| 9 |
> >> -fno-unwind-tables -fno-asynchronous-unwind-tables" CXXFLAGS="${CFLAGS}" |
| 10 |
> >> |
| 11 |
> >> See http://comments.gmane.org/gmane.linux.busybox/36695 for why I |
| 12 |
> >> |
| 13 |
> >> include "-fno-unwind-tables -fno-asynchronous-unwind-tables". Would I |
| 14 |
> >> have to rebuild system and world without... |
| 15 |
> >> |
| 16 |
> >> -fomit-frame-pointer -fno-unwind-tables -fno-asynchronous-unwind-tables |
| 17 |
> >> |
| 18 |
> >> ...to have debug data available? |
| 19 |
> > |
| 20 |
> > No, you haven't, if you have compiled everything with "-g" or "-ggdb". |
| 21 |
> > |
| 22 |
> > According to the web page you linked, the DWARF-2 tables are then written |
| 23 |
> > into the .debug files. Without -g/-ggdb, they are stripped and no longer |
| 24 |
> > available for debugging. |
| 25 |
> > |
| 26 |
> > So according to your CFLAGS, you'd have to rebuild everything, yes, but a |
| 27 |
> > simple "-g" would do. |
| 28 |
> > |
| 29 |
> > Oh, and "splitdebug" in "FEATURES" would be a good idea, too! ;) |
| 30 |
> |
| 31 |
> Hi Sven! |
| 32 |
> Meseems you are not right, please look at it: |
| 33 |
> $ readelf -p .GCC.command.line /usr/lib64/debug/usr/bin/sqlite3.debug |
| 34 |
> |
| 35 |
> |grep "unwind\|-g" |
| 36 |
> |
| 37 |
> [ 1e2] -grecord-gcc-switches |
| 38 |
> [ 1f8] -ggdb |
| 39 |
> [ 202] -frecord-gcc-switches |
| 40 |
> $ size /usr/bin/sqlite3 |
| 41 |
> text data bss dec hex filename |
| 42 |
> 44545 4124 328 48997 bf65 /usr/bin/sqlite3 |
| 43 |
> |
| 44 |
> |
| 45 |
> And with -fno-unwind... |
| 46 |
> $ readelf -p .GCC.command.line /usr/lib64/debug/usr/bin/sqlite3.debug |
| 47 |
> |
| 48 |
> |grep "unwind\|-g" |
| 49 |
> |
| 50 |
> [ 1e2] -grecord-gcc-switches |
| 51 |
> [ 1f8] -ggdb |
| 52 |
> [ 202] -frecord-gcc-switches |
| 53 |
> [ 218] -fno-unwind-tables |
| 54 |
> [ 22b] -fno-asynchronous-unwind-tables |
| 55 |
> $ size /usr/bin/sqlite3 |
| 56 |
> text data bss dec hex filename |
| 57 |
> 42713 4124 328 47165 b83d /usr/bin/sqlite3 |
| 58 |
> |
| 59 |
> As you can see I have splitdebug turned on. |
| 60 |
> Marcin |
| 61 |
|
| 62 |
Hi Marcin, |
| 63 |
|
| 64 |
I am not right with what? All I did was interpreting a quoted link. And what |
| 65 |
is this supposed to mean? So /usr/bin/sqlite3 looses size. Yes. This goes |
| 66 |
along with the quoted link. But did you compare the current size of |
| 67 |
/usr/lib64/debug/usr/bin/sqlite3.debug before and after? |
| 68 |
|
| 69 |
Sorry for any inconvenience, but I assure you, I have absolutly no idea what |
| 70 |
you intent to show. |
| 71 |
|
| 72 |
Sincerly |
| 73 |
|
| 74 |
Sven |
| 75 |
|
| 76 |
-- |
| 77 |
http://pwxlib.sourceforge.net |
Archives